The digestive system breaks down the food we eat while the circulatory system transports the tiny particles to each cell in the body.
No diagram shown, but it would be the fish/any other organisms near or in the shallow part/any part of a pond/lake.
Answer:
As the diagram is not given, hence let's generally describe the movement of molecules along the cell membrane.
Molecules can either pass through the cell without using energy through the process of passive transport. An example includes molecules of oxygen.
Molecules which are large and un-polar cannot move through the cell membrane easily. These molecules will require energy to move through the cell membrane. These molecules might move in with the help of the carrier or facilitated proteins. Examples include molecules of glucose.
Answer:
False
Explanation:
Stem cells are different type of cells in human body that can develop into different other body cells like muscles cells or brain cells and they gave the capability to renew themselves through mitotic cell division.
Stem cells are not lost in childhood but can be use to treat diseases or infection, it can be use to grow new cells and replace damaged body cells.
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The ph of smoke disrupts the natural ph of water( which is 7, the neutral ph) in the atmosphere causing it to become acidic . This is dangerous as it will also have effects on rain and soil ph.
